问题
单项选择题 B1型题
常用抗原抗体凝集反应中，"高滴度阳性患者病变活动重，病情进展较快，不易缓解，预后较差，且伴有严重的关节外表现"属于（）
A.单一的IgE增高
B.单一的IgA降低
C.C反应蛋白（CRP）测定
D.抗链球菌溶血素"O"试验
E.类风湿因子（RF.乳胶凝集试验
答案
参考答案：E
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常用抗原抗体凝集反应中，"高滴度阳性患者病变活动重，病情进展较快，不易缓解，预后较差，且伴有严重的关节外表现"属于（）
A.单一的IgE增高
B.单一的IgA降低
C.C反应蛋白（CRP）测定
D.抗链球菌溶血素"O"试验
E.类风湿因子（RF.乳胶凝集试验
参考答案：E
The earth moves round the sun, and the moon moves round the earth. When our part of the earth turns__46__ the sun, it is day. When our part of the earth runs away __47__ the sun, it is __48__. The sun is much __49__ than the moon. But sometimes the moon _50__ bigger than the sun, because it’s much __51_ to the earth. The sun is very bright. It gives very __52__light. The moon looks quite bright, too, but it doesn’t give any light at all. The light __53_ the moon comes from the sun. The moon looks much bigger and brighter than the stars, _54__ in fact the stars are much bigger and brighter than the moon. __55__ smaller than the moon because they are farther away from the earth.
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